Lower limb dermatomes, cutaneous nerves and myotomes

Question 1

iliohypogastric

Answer 1

superolateral quadrant of buttocks

Question 2

ilio-inguinal

Answer 2

medial femoral triangle

Question 3

genitofemoral

Answer 3

lateral femoral triangle

Question 4

lateral femoral cutaneous

Answer 4

anterior and lateral aspect of thigh

Question 5

obturator

Answer 5

middle part of medial thigh

Question 6

posterior femoral cutaneous

Answer 6

posterior thigh and popliteal fossa

Question 7

saphenous

Answer 7

medial side of leg and foot

Question 8

superficial fibular

Answer 8

anterolateral leg and dorsum of foot, excl web between 1st and 2nd digits

Question 9

deep fibular

Answer 9

web between 1st and 2nd digits on dorsum of foot

Question 10

sural

Answer 10

posterolateral leg and lateral margin of foot

Question 11

medial plantar

Answer 11

medial side of sole, plantar aspect, sides and nail beds of medial 3.5 toes

Question 12

lateral plantar

Answer 12

lateral sole, plantar aspect, sides and nail beds of lateral 1.5 toes

Question 13

calcaneal

Answer 13

skin of heel

Question 14

S1

Answer 14

posterolateral thigh and leg, plantar and lateral aspect of foot

Question 15

S2

Answer 15

posterior thigh and leg

Question 16

S3

Answer 16

medial buttocks

Question 17

S4

Answer 17

medial buttocks

Question 18

L1

Answer 18

medial femoral triangle

Question 19

L2

Answer 19

lateral to medial of middle 1/3 of thigh

Question 20

L3

Answer 20

lateral to medial of middle 1/3 of thigh, below L2

Question 21

L4

Answer 21

medial aspect of leg

Question 22

L5

Answer 22

dorsum of foot and lateral aspect of leg, middle part of plantar aspect of foot

Question 23

Lateral hip rotation

Answer 23

L1, L5

Question 24

Medial hip rotation

Answer 24

L1, L2, L3

Question 25

Adduction of hip

Answer 25

L1, L2, L3, L4

Question 26

Abduction of hip

Answer 26

L5, S1

Question 27

Inversion

Answer 27

L4, L5

Question 28

Eversion

Answer 28

L5, S1

Question 29

Dorsiflexion (metatarsophalangeal and phalangeal)

Answer 29

L5, S1

Question 30

Plantarflexion (metatarsophalangeal and phalangeal)

Answer 30

S1, S2

Question 31

Hip extention

Answer 31

L4, L5

Question 32

Hip flexion

Answer 32

L2, L3

Question 33

Knee flexion

Answer 33

L5, S1

Question 34

Knee extension

Answer 34

L3, L4

Question 35

Dorsiflexion (ankle)

Answer 35

L4, L5

Question 36

Plantarflexion (ankle)

Answer 36

S1, S2